VAV system solution for non-pressure dependent applications in enclosed spaces
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- Derrick Reynolds
- 5 years ago
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1 System information VAV-Universal VAV system solution for non-pressure dependent applications in enclosed spaces able of contents echnical data sheet Brief description 3 echnical data 4 Safety notes 5 Dimensions 5 Operation, setup, connections 6 Electrical connections 7 Functions Nominal volumetric flow Vnom 8 Operating volumetric flow Vmin Vmax 8 VAV application 8 VAV voltage level 8 VAV operation 8 CAV application 9 Control 9 Priorities input w/z1/z2 9 Vmin/Vmax setting [Potentiometer or ool (PP Command)] 9 Setting with VAV adjustment tool ZH-VAV 10 Actuator variants/vav adjustment tool ZH-VAV 11 wwwbelimocom S4- en v Subject to changes 1 / 12
2 echnical data sheet VAV-Universal ool connector ready of VAV-Universal system solution with integrated almost static Belimo D3 pressure sensor for non-pressure dependent VAV and CAV applications in enclosed spaces Control: DC 2 10V/0 10V/contacts Settings: at the controller Vmin/Vmax or with VAV adjustment tool ZH-VAV Brief description Application Pressure measurement Actuator Control function Bus mode VAV variable air volume CAV constant volume flow Function indication Operating and service devices Assembly and connection OEM factory settings he digital VAV-Universal solution with its PI control characteristics is used for pressure independent control of VAV units in the comfort zone he integrated maintenance-free Belimo D3 differential pressure sensor allows a variety of applications ranging from offices, hospitals and hotels all the way to cruise ships he following actuator models are available depending on the area of application, size and structural shape of the VAV unit: Rotary actuator 0 95, depending on the size 5, 10, 20Nm Rotary actuator 0 95 with safety position current-free CLOSED or OPEN, 4 or 15Nm Rotary actuator eg for iris dampers 3Nm Linear actuator 100, 200 or 300mm linear motion 150N VAV or CAV operation he utilisation of the in MP-Bus systems (UK24LON, Fan Optimiser COU24-A-MP, etc) is not possible he VAV-Compact series and the VAV-Universal VRP-M system solution is available for these bus applications For variable air volume applications based on a modulating reference variable, eg supplied by a room temperature controller or a DDC system; it facilitates demand-related, power-saving ventilation in individual rooms or in zones of air conditioning systems he VminVmax working range can be subdivided by selecting a mode Available are the following: DC 2 10/0 10V For constant air volume applications, eg in step mode, controlled by means of an occupancy switch he following operating modes are available: CLOSED/Vmin/Vmax/OPEN Functional readiness display with green LED VAV adjustment and diagnostics device ZH-VAV: pluggable at the service socket of the or at the PP interface (terminal 4) Belimo PC-ool cannot be used with the he connection is made by screw terminal he actuator is connected with a plug-ready, preassembled cable he system solution is mounted on the VAV unit by the unit manufacturer, who adjusts and tests it according to the application he solution is sold exclusively through the OEM channel for this reason wwwbelimocom S4- en v Subject to changes 3 / 12
3 echnical data sheet echnical data Supply Nominal voltage Nominal voltage range Power consumption Differential pressure sensor, installed ype, principle of operation Operating range Overload capability Installation position Materials in contact with medium Control function Application Pressure range Max system primary pressure Characterising Medium Measuring air conditions AC 24V, 50/60Hz/DC 24V AC V/DC V 2W/35VA, without actuator Belimo D3-Sensor, Dynamic with almost static behaviour 2 300Pa ±3000Pa Non-position-dependent, no zero-point compensation necessary Glass, epoxy resin, PA, PE VAV and CAV units Single duct installations/supply/exhaust air units Dual duct installations/mixed units 2 300Pa Information for VAV unit manufacturer: < 1000Pa P@Vnom: useful adjusting range 50300Pa > Pa P@Vnom: useful adjusting range Pa VAV units, OEM-independent, with linearization to match the differential pressure sensor Supply and exhaust air in the comfort zone and in applications with sensor-compatible media 0 50 C/5 90% rh, non-condensating Vnom Vmax % of Vnom Vmin 0 100% of Vnom VAV input w, terminal 3 Switch-selectable VRD2 (compatible with predecessor model see page 6) Mode DC 2 10V Vmin Vmax, CLOSED with activation <01V (see page 57) Mode DC 0 10V Vmin Vmax Input impedance 100kΩ CAV input w, terminal 3 Compatible with L/N/SMV-D2M-MP (see page 57) Operating stages CLOSED, Vmin, Vmax, OPEN Override input Z1/Z2 Requires AC 24V power supply Z1 terminal 6 OPEN Z2 terminal 7 CLOSED, Vmin, Vmax DC 2 10/0 10V for 0 100% V nom Max load 05mA Operating Local Potentiometer for Vmin/Vmax setting ool VAV adjustment tool ZH-VAV, connection via service plug or PP connection Actuator (-V models) 5/10/20Nm, depending on application Connection can be plugged into Sound power level Damper rotation Connection Supply and control 7-pin screw terminals for 2x15mm 2 ool connection RJ12 socket Actuator 3-pin plug for-v actuator Safety Protection class III Safety extra-low voltage Degree of protection IP40 EMC CE according to 2004/108/EC Mode of operation ype 1 (EN ) Rated impulse voltage 08kV (EN ) Direction of rotation (l / r or / ) (see page 10) Angle of rotation limitation or stroke limitation Manual disengagement Max 35 db(a), SM24A-V max 45 db(a) LF24-A-V Motor max 35dB(A), spring 62dB(A); AF24-V Motor max 35dB(A), spring 62dB(A) 4 / 12 S4- en v Subject to changes wwwbelimocom
4 echnical data sheet echnical data Safety note (continued) Environmental conditions Control pollution degree 2 (EN ) Ambient temperature 050 C Non-operating temperature 2080 C Ambient humidity 95% rh, non-condensating (EN ) Maintenance Maintenance-free Dimensions/Weight Dimensions See «Dimensions» on page 3 Weight Approx 440g! he system solution is not allowed to be used outside the specified field of application, especially in aircraft or any other form of air transport Assembly must be carried out by trained personnel Any legal regulations or regulations issued by authorities must be observed during assembly he device does not contain any parts which can be replaced or repaired by the user he cable must not be removed from the actuator he device contains electrical and electronic components and is not allowed to be disposed of the household refuse All locally valid regulations and requirements must be observed Dimensions [mm] Dimensional drawings (For actuators see separate data sheets) Compatibility VRD2 he corresponds in its dimensions and connections to the VRD2 88 wwwbelimocom S4- en v Subject to changes 5 / 12
5 echnical data sheet Operation, setup, connections Setup, connections 8 1 Vmin 0 100% [in % of Vnom] ool 1 2 Vmin %Vnom w PP U5 Z1 Z2 7 24VAC/DC 50/60Hz 2W 35VA III ool Power Actuator Vmax %Vnom 6 5 a b 4 3 Service VRD2 2 Vmax % [in % of Vnom] 3 ool connection a) System plug: internal Belimo function, not for users b)service: connection for VAV adjustment tool ZH-VAV 4 Jumper for input w (terminal 3) Function: VRD2: VRD2-compatible : and L/N/SMV-D2-MP 5 Power LED, Function display 24V 6 Connection for V-actuator 7 Connecting terminals Connection D3 Sensor Connecting terminals 1 7 erminal Designation Function 1 / 2 / Supply AC/DC 24V 3 w Reference value input w jumper Mode 0 10/2 10V switchable with ZH-VAV Function as with new VAV-Compact L/N/SMV-D2-MP VAV: 0 10/2 10V=Vmin Vmax CAV: CLOSED/Vmin/Vmax/OPEN Note Supply via safety isolation transformer!! It is recommended that the PP connection (terminal 4) and the 24V be wired to readily accessible terminals in order to guarantee easy access with the VAV adjustment tool ZH-VAV (eg at the room temperature controller CR24 or in the control cabinet) he does not support any MP operation! Reference value input w jumper VRD2 Mode 0 10/2 10V switchable with ZH-VAV Function as with VRD2 VAV: 0 10/2 10V=Vmin Vmax CAV: not possible use Z1/Z2 4 PP PP interface for ZH-VAV (no MP operation) 5 U5 Mode 0 10/2 10V switchable with ZH-VAV Display range 0 100% Vnom 6 Z1 Override input Z1: Function OPEN 7 Z2 Forced control input Z2: Function CLOSED/Vmin/Vmax 6 / 12 S4- en v Subject to changes wwwbelimocom
6 echnical data sheet Electrical connections Wiring diagrams Connection VAV connection: supply and exhaust air system AC 24V DC 24V AC 24V DC 24V Reference value input w PP connection ZH-VAV PP Reference value input w 0 10/2 10V eg of room temperature controller CR24 Control input Z1/Z2 Compatibility VRD2: Reference signal [w] (terminal 3) Plugging the jumper in at position «VRD2» causes the to behave like the predecessor model VRD2 (ie no CAV control function via input w) Forced control inputs Z1 (terminal 6) and Z2 (terminal 7) are functionally compatible with the VRD2 and are not influenced by the jumper ool connection PP (terminal 4) he is equipped with a separate tool connection PP (terminal 4) For the VRD2, the tool connection is made via terminal 5, which exhibits a combination function: volumetric flow actual value signal U5 and PP connection w PP U5 z1 z2 ZH-VAV Actuator-V a eg supply air unit b eg exhaust air unit c Parallel connection d Master-Slave a b w PP U5 z1 z2 w PP U5 z1 z2 Actuator-V c d PP ZH-VAV Actuator-V ZH-VAV CAV connection Connection Z1/Z2 Connection input w AC 24V _ DC 24 V OPEN CLOSED Vmin *) max AC 24V 5 7 *) CLOSED min max OPEN *) Note he input signals 3 (w), 6 (Z1) and 7 (Z2) of several s can be switched with a joint signal, eg CLOSED It is not permitted to switch connection 6 (Z1) with a VRD2 terminal 6 w PP U5 z1 z2 w PP U5 z1 z2 PP Jumper Actuator-V ZH-VAV Actuator-V ZH-VAV Overview control signals/functions Note *) CAV control applications require AC 24V power supply Signal terminal/function Priority GND Pos hydraulic switch Neg hydraulic switch 24VAC Open Forced input Z1 (terminal 6) 1 OPEN 1 OPEN 1 Forced input Z2 (terminal 7) 2 CLOSED 2 Vmin 3 Vmax 4 ool (PP-Cmd) ZH-VAV 3 CAV stages (Auto, CLOSED, OPEN, Vmin, V max, Stop) Reference signal w terminal 3 4 CLOSED 5 OPEN 6 CLOSED Vmax 8 Vmin 9 Jumper: Mode: 2 10V Mode: 0 10V wwwbelimocom S4- en v Subject to changes 7 / 12
7 Functions Functions nom min Vmax VAV application Vnom corresponds to the maximum volumetric flow of the VAV unit at which the pressure drops and the noise is still within the permissible operating conditions he Vnom values are defined by the unit manufacturer for all unit nominal values; the controller is calibrated by the OEM to this flow rate he volumetric flow actual value signal U5 is always in relation to the nom Modifications of the operation volumetric flow settings min and Vmax and have therefore no influence on the U5 volt signal In variable operation, the volumetic flow is specified by means of the reference signal in the range Vmin Vmax Vmax forms the upper limit value Adjustment range % of Vnom Vmax forms the lower limit value Adjustment range 0 100% of Vnom he Vmax value must always be set higher than the Vmin value; otherwise the controller will operate with the Vmin volume as setpoint in CAV mode See also 1) Note below For Vmin/Vmax settings see page 8 In VAV operation, the regulated amount of air Vmin Vmax is specified via an analogue reference signal, eg from 2 10V room temperature controller Example: Mode 0 10V Reference signal w [V] max 10[V] U5 Signal Vnom Setpoint (reference signal) min VAV voltage level Starting point End point Vmin 0,0 10 < Modulating operation > Vmax Mode: 0 10V Shut-off 0,0 0,1 2,0 10 CLOSED Vmin < Modulating operation > Vmax 2 10V VAV operation 1) Note concerning the difference of Vmin setting of and VRD2 he adjustment range of the operating mode Vmin with: VRD2 refers to 0 100% of Vmax refers to 0 100% of Vnom he Vmin setting of the thus behaves in compatible fashion with the new VAV generation (starting with 2006), ie VAV-Compact L/N/SMV-D2-MP, VRP-M With «Damper CLOSED» option In mode 2 10V, it is possible to achieve shut-off mode (damper CLOSED) by lowering the reference signal to 00V With superordinate override controls For forced control input during VAV operation, eg CLOSED or OPEN, the reference signal w (input 3) can be overridden by switching the control inputs 6 (Z1) and 7 (Z2) 8 / 12 S4- en v Subject to changes wwwbelimocom
8 Functions Functions CAV application Control (continued) Shut-off operation damper CLOSED: the damper is moved to CLOSED CAV stages Vmin /Vmax: the controls the selected volumetric flow at a fixed value Flushing operation damper OPEN: he damper can be opened for maximum ventilation, in which case air volume control is deactivated he operating mode control signals are connected to inputs 6 (Z1) and 7 (Z2) If signals appear simultaneously at these two inputs, input 6 (Z1) for the OPEN function takes priority OPEN OPEN Vmax 10[V] U5 Signal Vmax Vnom Vmin CLOSED CLOSED Vmin Priorities input w/z1/z2 Prio 1: Z1 (terminal 6) Prio 2: Z2 (terminal 7) Prio 3: VAV adjustment tool ZH-VAV (PP command) Prio 4: Reference signal w (terminal 3) Vmin/Vmax setting [Potentiometer or ool (PP Command)] Note concerning the difference of Vmin setting of and VRD2 he adjustment range of the operating mode Vmin with: VRD2 refers to 0 100% of Vmax refers to 0 100% of Vnom he Vmin setting of the thus behaves in compatible fashion with the new VAV generation (starting with 2006), ie VAV-Compact L/N/SMV-D2-MP, VRP-M min and Vmax can be adjusted in two different ways on the : a) directly on the adjustment potentiometer (analogous to the VRD2) Vmin 0 100% of Vnom Vmax % of Vnom b) with VAV adjustment tool ZH-VAV (PP command) Both of the potentiometers Vmin and Vmax must be set to tool position in order to write a value with PP Command in the If the potentiometer(s) with connected ZH-VAV are set to «ool», then the menu will need to be refreshed by actuating the keys For function see following illustration: Adjustment potentiometer Vmin/Vmax ool ZH-VAV OK 100 ZH-VAV ool w parameterised value 45% 0 100% ool (PP) Automatic adjustment via potentiometer position Potentiometer: ool: ZH value 0 100%: Potentiometer value active r=read w=write effective value 45% he Vmax value must always be set higher than the Vmin value; otherwise the controller will operate with the Vmin volume as setpoint in CAV mode r wwwbelimocom S4- en v Subject to changes 9 / 12
9 Setting with VAV adjustment tool ZH-VAV Setting with VAV adjustment tool ZH-VAV he entire BELIMO product range with PP connection can be set and controlled with the VAV adjustment tool ZH-VAV he connection to the is provided by the RJ «Service» socket or at the PP connection (terminal 4), eg in the control cabinet Operating menu Option Unit Range/setting Function % 0 100% [of Vnom] Commissioning, % 0 100% [Vmin Vmax] service function Current effective pressure* Pa 0 300Pa Specify CAV steps Auto CLOSED OPEN Vmin Vmax Stop Mode 0 10V, 2 10V Vmin setting % 0 100% [of Vnom] Settings, Vmax setting % % [of Vnom] Vnom VAV unit % Nominal setting=100% p@vnom* Pa differential pressure pending OEM setting with Vnom *Option requires ZH-VAV firmware V102 or higher (062008) See also Release Note ZH-VAV at wwwbelimoeu Specify CAV steps he with the ZH-VAV can be switched to one of the CAV stages illustrated below for functional checking of the VAV/CAV units Stage Function Control function: AUO * Setpoint of input w, terminal 3 or 6/7 VAV or CAV operation CLOSED Damper closes no control mode OPEN Damper opens no control mode Vmin min CAV operation Vmin Vmax max CAV operation Vmax SOP Damper stops at current position no control mode *If the ZH-VAV has been disconnected from the without reactivation of the «Auto» stage, then the will be reset to automatic operation after max 120s Connection Connection to Cable type and order designation, RJ «Service» socket ZK6-GEN Accessories PP connection (terminal 4), eg control cabinet terminals ZK2-GEN Accessories white blue turquoise GND / PP ZH-VAV OK ool ool? min %? nom? max %? nom ZK6-GEN Power Service VRD2 Actuator turquoise blue white ZK2-GEN 12 4 For detailed documentation concerning the handling and function of the ZH-VAV see ZH-VAV instruction manual at wwwbelimoeu 10 / 12 S4- en v Subject to changes wwwbelimocom
10 Actuator variants/vav adjustment tool ZH-VAV Actuator variants (standard actuators) ype Actuator Features Rotary Actuators 0 90 LM24A-V Damper Actuator for VAV-Universal AC/DC 24V, modulating, 5Nm Control DC 60 ±4V from controller Motor running time s Connection: cable with plug Angle of rotation 90 NM24A-V Damper Actuator for VAV-Universal AC/DC 24V, modulating, 10Nm Control DC 60 ±4V from controller Motor running time 120s Connection: cable with plug Angle of rotation 90 SM24A-V Damper Actuator for VAV-Universal AC/DC 24V, modulating, 20Nm Control DC 60 ±4V from controller Motor running time 120s Connection: cable with plug Angle of rotation 90 Spring-Return Actuators 0 90 LF24-V Spring-Return Actuator for VAV-Universal AC/DC 24V, modulating, 4Nm Control DC 60 ±4V from controller Running time motor s Running time spring-return approximately 20s Connection: cable with plug Angle of rotation 95 AF24-V Spring-Return Actuator for VAV-Universal AC/DC 24V, modulating, 15Nm Control DC 60 ±4V from controller Running time motor s Running time spring-return approximately 16s Connection: cable with plug Angle of rotation 95 Actuators* for special applications *LU24A- Rotary Actuator rotating, eg for iris dampers 3Nm *LH24A- Linear Actuator 100, 200 or 300mm *on request VAV adjustment tool ZH-VAV ZH-VAV Adjustment tool for Belimo VAV controller Supply to VAV controller AC/DC 24V For more detailed documents see wwwbelimoeu wwwbelimocom S4- en v Subject to changes 11 / 12
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